Renishaw APCA 45, Инструкция по установке и эксплуатации

Страница: 33 / 52

19
Operation
sequence
Stylus Solenoid
valve 1
(V1)
Solenoid
valve 2
(V2)
Solenoid
valve 3
(V3)
End of
sequence
trigger
Monitor Variable
to set
Comment
1 Cover extend Protected 1 0 0 Pressure switch
activation Pressure
switch
2 “Air bleed” off
(extended)
Protected 0 0 0 Time Pressure
switch Sequence
hold time Pressure
switch must
read
> 4.5 bar
(65.3 psi)
3 “Air bleed” on
(extended)
Protected 0 0 1 Time Pressure
switch Bleed time Pressure
switch must
read
> 4.5 bar
(65.3 psi)
4 “Air bleed” off
(extended)
Protected 0 0 0 Time Pressure
switch Sequence
hold time Pressure
switch must
read
> 4.5 bar
(65.3 psi)
5 Cover retract Accessible 0 1 0 Retract sensor Retract
sensor
Will “air bleed”
at end of travel
6 “Air bleed” on
(retracted)
Accessible 0 1 1 Time Retract
sensor
Bleed time Allow
independent
control of “air
bleed” flow
7 “Air bleed” off
(retracted)
Accessible 0 0 0 Time Retract
sensor
Sequence
hold time Not pressure
locked in
position
1 Cover extend Protected 1 0 0 Pressure switch
activation Pressure
switch
Operation sequence
(circuit 2)
Pneumatic set-up (continued)